Tire chain



R. J. COCHRAN.

TIRE CHAIN.

APPLICATION FILED AUG.23, I920.

Patented Oct. 17, 1922.

ing drawlng.

Patented @ct. ll 7, 1922'.

UNHTEED) STATE ROBERT JASPER COCHRAN, 0E CEDAR, KANSAS.

TIRE CHAIN.

Application filed August 23, 1920. Serial Ito. 405,320.

To all whom it may concern Be it known that I, ROBERT Jasrm Coon- RAN, a citizen of the United States, residing.

at Cedar, in the county of Smith and State of Kansas, have invented certain new and useful Improvements in Tire Chains, of which the following is a specification, reference being had therein to the accompany- This invention relates to improvements in tire chains, which are adapted to .be applied to and removed from the tire.

The primary object of my invention is to provide a tire chain carrying a plurality of projections adapted to engage the surface upon which the tire rests to prevent itv from slipping thereon. r I

Another object of my invention is to provide a tire chainwhich is so constructed that it is particularly adapted to prevent the slipping of the tire on a muddy or soft surface, thereby causing SllfilGlGIlt traction to drive the vehicle to which the tire is applied.

Another ob jectof my invention is to provvide an improved fastening lever for the p K will be readily understood, whlle at the same time the links 5 are at the periphery of the including V-shaped members with projectig. 3 is a reduced inside view of a por tion of my improved chain, showing the relative arrangementof the side chains and the approximately X-shaped cross-arrangements.

Referring now to the drawings 'in which similar reference characters indicate the same parts, 1 are the side chains which are com mon to tire chains. These side chains l-when applied to the tire 2; rest approximately at the rim 3 of the wheel to which the tire is applied. These two side chains are commo to the ordinary tire chains. v

My improvement comprises cross-arrangements A, which are approximately X-shaped and connect the side chains 1. These approximately X-shaped cross or connecting members A, comprise two members 3. These members B, comprise elongated toothed pordescriptioniand' distions 4, which are connected at their inner ends by a suitable number of rings '5. Two wing-like portions 6 extend from the inner edges ofthe toothed portions 4: and spread apart. The spread of these wings may be suflicient, to cause "them to rest flatwise against the outer surfacesof the tire, as

shown in Fig. 1, or they may be separated enough to have approximately V-shape in end elevation, as shown in Fig. 2. When in thls latter shape, the inner edge 7 of the wings 6 will be curved to fit the outer surface of the tire. A suitable number of links 8 connecting the outer ends of the wings 6 with a U-shaped link 9, which is connected with the links of the side chains 1.

By means of this construction, the side chains 1 are connected by a plurality of approximately X shaped connections A, each connection having elongated teeth-like portions 4, which extend in a direction transverse of the tire surface. mately X-shapedarrangements with teethlike members 4:, form a very effective traction in soft or muddy surfaces to prevent the slipping or-turning of the tire thereon, as

tire,as' shown in Fig. 1. lt provide a fastener (1 connecting the ends of the side chain. Une end of the fastener C. of a tire is-conne'cted in any suitable manner with one end of the side chain 1, as at 21, and the outer end of the adjacent link-member 8 is connected to the lug' 22, which is pivoted at 17 to the fastener C. a

1 Persons who have handled the ordinary tire chains have realized at times the dimculty of hooking the loose ends of the tire chain to the fastening lever. F or the purpose of providing a hand-hold to permitthe free ends of the side chains to be readily pulled to the proper adjustment, T extend them to form hand-holds. 23, whereby the chains can be readily pulled tight to the' These approxiproper adjustment with the fastener C. The I free ends of these hand-holds 23 are provided with suitable snap hooks 24, so that they may be snapped into one of the links of the side chain for the purpose of preventing it from dangling and slipping against the fender of t e automobile.

By this arrangement, I provide a tire chain having a very efficient traction in soft and muddy surfaces and which has its side chains provided with extensions to form two wing-like members having their apices connected by links and the ends of their wings connected by links to the sidechains.

2. An improved tire chain comprising side chains, a plurality of connections connecting the side chains, the connections between the side chains including two-wiiig-likemembers of a V-shape in cross-section and having tooth-like apices extending longitudinally the V of the wing members, and the apices of the wing-like members connected, for the purpose described. j

7 3. An improved tire chain comprising side chams, a plurality of cross-connectlons con necting the sldechalns, said connections in- -cluding elongated tooth-likeprojections extending in a direction transverse the tire. and supported away from thetire by oppositely extending wing members having their apices connected by links and the .ends of their wings connected to the side chains.

4. An improved tire chain, comprising side chains having a plurality of cross-com.

nections, the cross-connections beingapproximately X-shaped, the cross connections-meluding two wing-like members having link connections between themselves and the side chains soa's to position the members on opposite sides of a tire tread. In testimony whereof I hereunto .afiix my signature.

nonnnfr JASPER coo-mean, 

